package com.liudong.ddweather;

import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import com.liudong.ddweather.db.City;
import com.liudong.ddweather.db.County;
import com.liudong.ddweather.db.Province;
import com.liudong.ddweather.util.Constant;
import com.liudong.ddweather.util.DataUtils;
import com.liudong.ddweather.util.HttpUtils;
import com.liudong.ddweather.util.LogUtil;

import org.litepal.crud.DataSupport;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;


public class AreaFragment extends Fragment {

    public static final int LEVEL_PROVINCE=0;
    public static final int LEVEL_CITY=1;
    public static final int LEVEL_COUNTY=2;

    private ProgressDialog progressDialog;

    private TextView titleView;
    private Button back_button;

    private ListView listView;
    private ArrayAdapter<String> adapter;
    private List<String> dataList = new ArrayList<String>();
    /**
     * 省列表
     */
    private List<Province> provinceList;
    /**
     * 市列表
     */
    private List<City> cityList;
    /**
     * 县列表
     */
    private List<County> countyList;
    /**
     * 选中省
     */
    private Province selectedProvince;
    /**
     * 选中市
     */
    private City selectedCity;
    /**
     * 当前选中级别
     */
    private int currentLevel;

    public AreaFragment() {
    }



    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
      View view = inflater.inflate(R.layout.choose_area,container,false);
      titleView = view.findViewById(R.id.title_text);
      back_button = view.findViewById(R.id.back_button);
      listView = view.findViewById(R.id.list_view);
      adapter = new ArrayAdapter<>(getContext(),android.R.layout.simple_list_item_1,dataList);
      listView.setAdapter(adapter);
      return view;
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                if(currentLevel == LEVEL_PROVINCE){
                    selectedProvince = provinceList.get(position);
                    queryCitys();
                }else if(currentLevel == LEVEL_CITY){
                    selectedCity = cityList.get(position);
                    queryCounties();
                }else if(currentLevel == LEVEL_COUNTY){
                    Constant.weatherId = countyList.get(position).getWeatherId();

                    if(getActivity() instanceof  MainActivity){
                        Intent intent = new Intent(getActivity(),WeatherActivity.class);
                        intent.putExtra("weather_id",Constant.weatherId);
                        startActivity(intent);
                        getActivity().finish();
                    }else if(getActivity() instanceof WeatherActivity){
                        WeatherActivity activity = (WeatherActivity) getActivity();
                        activity.drawerLayout.closeDrawers();
                        activity.swipeRefresh.setRefreshing(true);
                        activity.requestWeather(Constant.weatherId);
                    }

                }
            }
        });
        back_button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(currentLevel == LEVEL_COUNTY){
                    queryCitys();
                }else if(currentLevel == LEVEL_CITY){
                    queryProvinces();
                }
            }

        });
        queryProvinces();
    }
    private void queryProvinces() {
        titleView.setText("中国");
        back_button.setVisibility(View.GONE);
        provinceList = DataSupport.findAll(Province.class);
        if(provinceList.size()>0){
            dataList.clear();
            for(Province province : provinceList){
                dataList.add(province.getProvinceName());
            }
            adapter.notifyDataSetChanged();
            listView.setSelection(0);
            currentLevel = LEVEL_PROVINCE;
        }else {

            queryFormServer(Constant.address,"province");
        }

    }
    private void queryCounties() {
        titleView.setText(selectedCity.getCityName());
        back_button.setVisibility(View.VISIBLE);
        countyList = DataSupport.where("cityid = ?",String.valueOf(selectedCity.getId())).find(County.class);
        if(countyList.size()>0){
            dataList.clear();
            for(County county: countyList){
                dataList.add(county.getCountyName());
            }
            adapter.notifyDataSetChanged();
            listView.setSelection(0);
            currentLevel = LEVEL_COUNTY;
        }else {
            int proinceCode = selectedProvince.getProvinceCode();
            int cityCode = selectedCity.getCityCode();
            String address = Constant.address+proinceCode+"/"+cityCode;
            queryFormServer(address,"county");
        }

    }
    private void queryCitys() {
        titleView.setText(selectedProvince.getProvinceName());
        back_button.setVisibility(View.VISIBLE);
        cityList = DataSupport.where("provinceid = ?",String.valueOf(selectedProvince.getId())).find(City.class);
        if(cityList.size()>0){
            dataList.clear();
            for(City city: cityList){
                dataList.add(city.getCityName());
            }
            adapter.notifyDataSetChanged();
            listView.setSelection(0);
            currentLevel = LEVEL_CITY;
        }else {
            int proinceCode = selectedProvince.getProvinceCode();
            String address = Constant.address+proinceCode;
            queryFormServer(address,"city");
        }
    }
    @Override
    public void onAttach(Context context) {
        super.onAttach(context);

    }
    private void queryFormServer(String address, final String type) {
        showProgressDialog();
        HttpUtils.sendOkHttpRequest(address, new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                getActivity().runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        closeProgressDialog();
                        Toast.makeText(getContext(),"加载失败",Toast.LENGTH_SHORT).show();
                    }
                });
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                String responseText = response.body().string();
                boolean result = false;
                if("province".equals(type)){
                    result = DataUtils.handleProvinceResponse(responseText);
                }else if("city".equals(type)){
                    result = DataUtils.handleCityResponse(responseText,selectedProvince.getId());
                }else if("county".equals(type)){
                    result = DataUtils.handleCountyResponse(responseText,selectedCity.getId());
                }
                if(result){
                    getActivity().runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            closeProgressDialog();
                            if("province".equals(type)){
                                queryProvinces();
                            }else if("city".equals(type)){
                                queryCitys();
                            }else if("county".equals(type)){
                                queryCounties();
                            }
                        }
                    });
                }
            }
        });
    }
    private void closeProgressDialog() {
        if(progressDialog!=null){
            progressDialog.dismiss();
        }
    }
    private void showProgressDialog() {
        if(progressDialog == null){
            progressDialog = new ProgressDialog(getActivity());
            progressDialog.setMessage("正在加载...");
            progressDialog.setCanceledOnTouchOutside(false);
        }
        progressDialog.show();
    }

    @Override
    public void onDetach() {
        super.onDetach();
    }



}
